There are many types of refractive problem that should be addressed in any eye examination. However you should be aware that the optical prescription varies depending on the lighting and some health conditions. Night driving often needs a different presription to day driving - NOT just a lens coating or tint although these may be helpful for some. If you have problems with lighting such as floursecent lights or computer screens - we have the only instrument in Scotland that can emulate any lighting condition and allow us to modify as appropriate.
The most common refractive problems are
Myopia - short sightedness - this results in a blurred image that becomes clearer when looking at a close object. The stronger the prescription, the more blurred the distance, and the closer you need to hold things to see them clearly.
Hyperopia - long sightedness - this results in using some focussing power to see in the distance and therefore there will be less focussing power in the system to see close objects. Focussing power reserves reduces with age. Will result in reading glasses at below 45 years of age, and may require distance spectacles at some stage. It is often associated with strabismus - squint (where both eyes do not work together) and amblyopia - lazy eye (where vision does not improve to the best standard even with spectacles).
Astigmatism - uneven curvature of the eyes - may be described as rugby ball eyes. Causes blurring - the degree of this depends on the degree and rotation of the astigmatism
Presbyopia - a loss of focussing power due to age. Initially there is a need for reading spectacles, later the ability to see close recedes and even arms length becomes difficult.
If a child does not get proper eye care their visual system may be damaged for life. It is essential that they are seen from an early age.
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The most common refractive problems are
Myopia - short sightedness - this results in a blurred image that becomes clearer when looking at a close object. The stronger the prescription, the more blurred the distance, and the closer you need to hold things to see them clearly.
Hyperopia - long sightedness - this results in using some focussing power to see in the distance and therefore there will be less focussing power in the system to see close objects. Focussing power reserves reduces with age. Will result in reading glasses at below 45 years of age, and may require distance spectacles at some stage. It is often associated with strabismus - squint (where both eyes do not work together) and amblyopia - lazy eye (where vision does not improve to the best standard even with spectacles).
Astigmatism - uneven curvature of the eyes - may be described as rugby ball eyes. Causes blurring - the degree of this depends on the degree and rotation of the astigmatism
Presbyopia - a loss of focussing power due to age. Initially there is a need for reading spectacles, later the ability to see close recedes and even arms length becomes difficult.
If a child does not get proper eye care their visual system may be damaged for life. It is essential that they are seen from an early age.